Method of implementing location, method of broadcasting position information of neighbor base station and method of negotiating location capability

Inactive Publication Date: 2011-03-03
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0042]On the basis of the above technical solution, the mobile station and the serving base station provided by the present invention may further determine the location method via the signaling interaction; besides, the mobile station and the base stations participating in the location perform the location measuring according to the determined location method and the parameters required in the location. Since it may be determined to adopt any one or multiple existing location method in the prior art when the mobile station and the serving base station determine the location method, such as the mixed location method, it is needless to perform the location based on the mixed location method supported by several sets of signaling in the prior art, it is possible to save the signaling overhead and reduce the delay, thereby improving the system efficiency and the throughput of the system available information.
[0043]In addition, in accor

Problems solved by technology

Therefore, GPS may not be convenient for most users.
The monitoring device measures signal parameters sent by the mobile station, and estimates the approximate position of mobile station by use a proper algorithm; however, the signal propagation is dependent upon the character of mobile communication channel to a great extent, which greatly affects the location precision.
The above redundant indication elements or parameters only refer to the switching and scanning procedure, which are not required in the location service; when the above signaling is used as location signaling, however, such indication elements or parameters are inevitably transmitted; as a result, it is possible to cause the signaling redundancy and increase the overhead of system.
in a similar way, there are also many redundancy indication elements which are not required by the location server in the above second set of uplink ranging signaling, which causes the signaling redundancy and very large overhead when the location is performed by use of the uplink ranging signaling.
Besides, the second set of signaling only supports the location triggered by the n

Method used

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  • Method of implementing location, method of broadcasting position information of neighbor base station and method of negotiating location capability
  • Method of implementing location, method of broadcasting position information of neighbor base station and method of negotiating location capability
  • Method of implementing location, method of broadcasting position information of neighbor base station and method of negotiating location capability

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embodiment 1

[0356]This embodiment is described by taking the DL-TDOA triggered by an MS and performed the location management by the MS for example.

[0357]FIG. 5 is a signaling flowchart illustrating the downlink location method according an embodiment of the present invention. Referring to FIG. 5, the entities involved in the location procedure include: an MS, a serving base station, a neighbor base station 2 and a neighbor base station 3. The location procedure includes the following:

[0358]Block 501: the MS sends to the serving base station a location trigger signaling (LBS-TRIGGER) for requiring a downlink location.

[0359]In block 501, the type of the method for performing the downlink location may be designated in the sent LBS-TRIGGER, e.g. DL-TDOA, and other associated information may be carried in the LBS-TRIGGER according to the above described content of the present invention.

[0360]Block 502: the serving base station sends a location request signaling (LBS-REQ) to the MS.

[0361]As it is de...

embodiment 2

[0369]The embodiment is described by taking the DL-TDOA performed the location management by the network side for example.

[0370]FIG. 6 illustrates signaling for the downlink location method according to an embodiment of the present invention; Referring to FIG. 6, the entities involved in the location procedure include: an MS, a serving base station, a neighbor base station 2, a neighbor base station 3 and a core network / location system. The location procedure may be triggered by the MS (corresponding to blocks 601a and 602a of FIG. 6), or may also be triggered by the network side (corresponding to block 601b and 602b of FIG. 6). The location procedure as shown in FIG. 6 includes the following:

[0371]Block 601a: the MS sends to the serving base station a location trigger signaling (LBS-TRIGGER) for requiring a downlink location.

[0372]In block 601, the type of the method for performing the downlink location may be designated in the sent LBS-TRIGGER, e.g. DL-TDOA, and other associated i...

embodiment 3

[0389]The embodiment is described by taking the UL-TDOA performed the location management by the network side for example. In this embodiment, the MS sends a ranging signal; various base stations participating in the location receive the ranging signal for measuring at the same time, and feed back the location measuring result of various base stations to the location server for performing the location calculation.

[0390]FIG. 7 illustrates signaling for the uplink location method according to this embodiment of the present invention. Referring to FIG. 7, the entities involved in the location procedure include: an MS, a serving base station, a neighbor base station 2, a neighbor base station 3 and a core network / location system. Similar to embodiment 2, the location procedure may be triggered by the MS (corresponding to blocks 701a and 702a of FIG. 7), or may also be triggered by the network side (corresponding to blocks 701b and 702b of FIG. 7). The location procedure as shown in FIG....

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Abstract

A method of implementing the location includes determining the base stations participating in the location and parameters required in the location via the signaling interaction between a mobile station and a serving base station. Afterwards, the mobile station and the base stations participating in the location perform the location measuring according to the determined parameters required in the location; at last, performing the location calculation according to the measuring result of location measuring.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S) AND CLAIM OF PRIORITY[0001]The present application claims the benefit under 35 U.S.C. §119(a) to a Chinese patent application filed in the Chinese Intellectual Property Office on Aug. 28, 2009 and assigned Serial No. 200910171538.8, the entire disclosure of which is hereby incorporated by reference.TECHNICAL FIELD OF THE INVENTION[0002]The present invention relates to wireless location technology, and more particularly, to a method of implementing the location, a method of broadcasting the position information of neighbor base stations and a method of negotiating the location capability.BACKGROUND OF THE INVENTION[0003]The study for wireless location technology began with the automatic vehicle location system of 1960s; afterwards, the technology has been widely used in public traffic, taxi dispatching and public security tracing. Thereafter, along with the rising position based information service demand required by the folks, the wireless l...

Claims

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Application Information

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IPC IPC(8): H04W4/02
CPCH04W64/00
Inventor ZHOU, LEIZHENG, XUFENGKIM, SANG-HEON
Owner SAMSUNG ELECTRONICS CO LTD
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